Her husband was also suspended from his job at the airport. There is no suggestion Haleema or her husband Usman Darr are extremists or knew what Butt was planning.

Heathrow have declined to release details of the security checks its staff undergo, although for similar roles in the police, the history of applicants’ family is reviewed.

Khuram was known to MI5 after appearing in a Channel 4 documentary called The Jihadis Next Door.

Following the attack on London Bridge, which saw Khuram and accomplices Rachid Redouane and Youssef Zaghba drive a van into pedestrians, jumping out and going on a stabbing spree, Haleema was reportedly suspended from her job over security fears.

Her husband, Usman Darr, who also worked on security, was suspended as well, a source confirmed to MailOnline.

When approached at her Harrow home by the Daily Mirror, Haleema said: ‘You should take it up with Heathrow.’

There is no suggestion Haleema Butt or Usman Darr are extremists or knew what Butt was planning.

His family are said to have had their lives turned upside down by his actions and, in a statement, said they ‘strongly condemn these actions’.

In a statement, his family said: ‘As a family we are shocked and appalled by the actions of Khuram and his associates.

‘We strongly condemn these actions. Our heartfelt thoughts and prayers are with the victims and families at this time.

‘Now more than ever we need to work together to stop the actions of the mindless few who claim to be acting in the name of Islam.’…